Genital Evolution Was Necessary for Vertebrates to Transition from Sea to Land, New Study Finds

November 5, 2014 8:52 PM

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A new study has examined the evolutionary changes in genitalia that needed to happen for vertebrates to transition from sea to land.

According to BBC News, authors of a study published in the journal Nature believe the key to the answer, at least for snakes and lizards, is in the limbs. Though snakes do not have limbs, they found that early genital evolution resembled that of a limb.